JP2020100973A - Expansion joint ceiling structure - Google Patents

Abstract

To stably mount a ceiling panel member even when a ceiling base material is composed of a fibrous plate material in an expansion joint ceiling structure.SOLUTION: An expansion joint ceiling structure comprises: a ceiling panel member 40 provided so as to cover a gap 30a between a ceiling part 11 on a first skeleton side and a ceiling part 21 on a second skeleton side; a fixing mechanism part 50 for fixing one end 40a of the panel member 40 to the ceiling part 11; and a slide mechanism part 60 for slidably supporting the other end 40b of the panel member 40 to the ceiling part 21, wherein the panel member 40 is composed of a ceiling base material 41 and attachment materials 42 attached to both side parts of the ceiling base material, the fixing mechanism part 50 has a receiving member 51 fixed to an edge part of the ceiling part 11 and a pressing member 52 installed on an upper surface 41c of the ceiling base material 41, and with the one end 40a of the panel member 40 placed on the receiving member 51, the pressing member 52 is fixed to the receiving member 51 to hold the attachment material 42 between the members 51, 52.SELECTED DRAWING: Figure 2

Description

The present invention provides a first ceiling portion on the side of the first building body and a second ceiling on the side of the second building body in a connecting portion that connects between the first building body and the second building body that are adjacent to each other through a gap. The present invention relates to an expansion joint ceiling structure that includes a ceiling panel member that is provided so as to cover a gap with a portion.

As the expansion joint ceiling structure, in order to prevent the ceiling panel member covering the ceiling portion of the connecting portion from dropping or collapsing due to the relative fluctuation of both building skeletons sandwiching the connecting portion, a ceiling panel member It is known that one end of the ceiling panel member is fixed to the building body on one side and the other end of the ceiling panel member is slidably supported with respect to the building body on the other side (for example, see Patent Document 1). ..).
Further, as a general ceiling panel member, one having an ultralight weight (about 1 kg/m ² ) and high flexibility is known because the ceiling base material is made of a fibrous plate material (see Patent Document 2). ..).

JP, 09-310415, A JP, 2017-193886, A

In the expansion joint structure described in Patent Document 1, when a highly flexible ceiling panel member as described in Patent Document 2 is adopted in order to improve construction workability and safety, a gap between building frames is adopted. It becomes difficult to attach the ceiling panel member so as to stabilize the posture of the ceiling panel member in a state of covering the above.
In view of this actual situation, the main problem of the present invention is, in the expansion joint ceiling structure, even when employing a highly safe ceiling panel member in which the ceiling base material is made of a fibrous plate material, The point is to provide a technology that allows stable attachment.

1st characteristic structure of this invention WHEREIN: The 1st ceiling part by the side of said 1st building skeleton, and the said 2nd building skeleton in the connection part which connects between the 1st building skeleton and 2nd building skeleton which adjoin through a gap A ceiling panel member provided so as to cover a gap with the second ceiling portion on the side,
A fixing mechanism that fixes one end of the ceiling panel member to the first ceiling;
An expansion joint ceiling structure, comprising: a slide mechanism portion that slidably supports the other end portion of the ceiling panel member on the second ceiling portion,
The ceiling panel member is composed of a ceiling base material made of a rectangular fibrous plate material, and a bending deformation suppressing attachment provided on each of at least both side portions of the ceiling base material,
The fixing mechanism section includes a receiving member fixed to an edge portion of the first ceiling portion, and a holding member installed on an upper surface of a ceiling base material of the ceiling panel member, and the receiving member includes the ceiling. It is configured such that the holding member is fixed to the receiving member with one end of the panel member being placed, and that the holding member and the receiving member sandwich the attachment material of the ceiling panel member. is there.

According to this configuration, in the expansion joint ceiling structure, even if a highly safe ceiling panel member whose ceiling base material is made of a fibrous plate material is adopted, the ceiling panel member can be stably attached. it can.
That is, this ceiling panel member has a bending deformation suppressing attachment provided on at least both sides of the ceiling base material made of a rectangular fibrous plate material. Then, in the fixing mechanism portion that fixes one end of the ceiling panel member to the first ceiling portion, the pair of attachments attached to both side portions of the ceiling panel member are fixed to the edge portion of the first ceiling portion. A receiving member (for example, a receiving object) on which one end of the ceiling panel member is placed and a band-shaped restraining member (for example, a receiving object) fixed to the receiving member and crossing the upper surface of the ceiling base material of the ceiling panel member. It is pinched. Then, the postures of the pair of attachments are maintained stable while extending from the fixing mechanism portion on the first ceiling portion side to the slide mechanism portion on the second ceiling portion side. Therefore, in the ceiling base material made of the fibrous plate material provided between the pair of supporting materials, the pair of supporting materials whose postures are stable suppresses the bending deformation, and as a result, the ceiling panel member is It will be installed in a stable position.

A second characteristic configuration of the present invention is that the slide mechanism portion is configured by placing an end portion of the ceiling panel member on an upper surface of a protruding portion provided on the second ceiling portion. ..

According to this configuration, since the ceiling panel member is mounted in a stable posture as described above, the second ceiling portion is provided with the protruding portion, and the end of the ceiling panel member is provided on the upper surface of the protruding portion. It is possible to realize a slide mechanism portion that slidably supports the end portion of the ceiling panel member on the second ceiling portion only by adopting a simple configuration of mounting the portion.

In the third characteristic configuration of the present invention, the restraining member is positioned so that the restraining member bends in a direction along the strip-shaped portion that traverses the upper surface of the ceiling panel member and both ends of the strip-shaped portion along the outer surface of the attachment material of the ceiling panel member. And a folded piece portion for use.

According to this configuration, when attaching the restraining member to the ceiling panel member, the folded piece bent from both end portions of the strip-shaped portion with the strip-shaped portion of the restraining member along the upper surface of the ceiling base material of the ceiling panel member. By arranging the portion along the outer surface of the attachment material of the ceiling panel member, the restraining member can be positioned easily and accurately. Further, the posture of the supporting material sandwiched between the accurately positioned restraining member and the receiving member can be maintained accurately and more stably, and the ceiling panel member whose shape is regulated by this supporting material is more stable. It can be installed in any posture.

A fourth characteristic configuration of the present invention is that, in the fixing mechanism section, the restraining member is fixed to the receiving member with a screw, and the screw is arranged so as to penetrate the ceiling base material.

According to this configuration, the screw extending between the restraining member sandwiching the upper and lower portions and the receiving member penetrates through the ceiling base material of the ceiling panel member, so that the ceiling base material having a high flexibility is displaced in the ceiling panel member. It can be prevented appropriately.

A fifth characteristic configuration of the present invention is that the restraining member has a piercing portion formed so as to project downward and pierced into the ceiling base material.

According to this configuration, since the piercing portion projectingly formed on the restraining member installed on the upper surface of the ceiling panel member is pierced into the ceiling base material, the displacement of the ceiling base material having high flexibility in the ceiling panel member is displaced. Can be preferably prevented.

Expansion joint ceiling structure Expanded joint ceiling structure exploded perspective view Enlarged view of the fixing mechanism Enlarged view of slide mechanism (A) Exploded view of the ceiling panel member, (b) Cross-sectional view in the lateral direction of the ceiling panel member

Embodiments of the present invention will be described with reference to the drawings.
The expansion joint ceiling structure (hereinafter, referred to as “main ceiling structure”) 100 shown in FIG. 1 is a communication such as a passage for connecting the first building body 10 and the second building body 20 that are adjacent to each other with a gap. In the part 30, it is configured as a ceiling structure installed so as to cover a gap 30a between the first ceiling part 11 on the side of the first building frame 10 and the second ceiling part 21 on the side of the second building frame 20.

As shown in FIG. 2, a plurality of ceiling panel members 40 covering the ceiling of the connecting portion 30 are installed side by side.
As the ceiling panel member 40, in order to improve workability and safety, the ceiling base material 41 (see FIG. 3) is made of a fibrous plate material and is ultralight (about 1 kg/m ² ) and has high flexibility. What you have is used. Further, in order to prevent the ceiling panel member 40 from falling off or collapsing due to a relative change due to an earthquake or the like between the two building skeletons 10 and 20 that sandwich the communication portion 30, one end portion 40a of the ceiling panel member 40 is The other end portion 40b of the ceiling panel member 40 is slidable with respect to the second building body 20 on the other side by the slide mechanism portion 60 while being fixed to the first building body 10 on one side by the fixing mechanism portion 50. It is supported.
Further, in the present ceiling structure 100, since the ceiling base material 41 is made of the fibrous plate material as described above, even if the ceiling panel member 40 having high flexibility is adopted, The characteristic structure is adopted for stable mounting. The detailed configuration related to the ceiling panel member 40, the fixing mechanism section 50, and the slide mechanism section 60 for realizing such a characteristic configuration will be described below.

[Ceiling panel member]
As shown in FIG. 5, the ceiling panel member 40 is configured as a rectangular plate-shaped lightweight ceiling material mainly composed of a ceiling base material 41 which is a lightweight fiber material. That is, in the ceiling panel member 40, a ceiling base material 41 formed of glass wool, which is an example of a fibrous material, is formed into a rectangular plate shape, and both side portions 41 a of the ceiling base material 41 are attached to the ceiling base material 41. A strip-shaped bending-suppression member 42 for suppressing the bending deformation of 41 and a non-combustible or flame-retardant flexible surface member 43 for covering the lower surface of the ceiling base material 41 are provided. ing.

The supporting member 42 for suppressing the flexural deformation is formed of, for example, an elongated strip plate member made of aluminum alloy, steel, or the like. The width dimension (height dimension along the vertical direction in FIG. 5) of the attachment material 42 is the same as or substantially the same as the height dimension (thickness dimension) of the ceiling base material 41. Further, the length dimension of the attachment material 42 is the same as or substantially the same as the length dimension of the long side portion of the outer peripheral portion of the ceiling base material 41. Then, the attachment material 42 is bonded to the entire area of the end face portions of the long side portions by an adhesive means such as an adhesive while covering the entire area of the end face portions of the pair of long side portions of the ceiling base material 41. ..

With this attachment material 42, the flexural rigidity of the ceiling base material 41 is appropriately and efficiently reinforced while suppressing an increase in weight as much as possible. Therefore, it is possible to prevent the intermediate portion in the longitudinal direction of the ceiling panel member 40 from hanging down in a state where the ceiling panel member 40 is installed between the attachment materials 42. Moreover, in a state where the ceiling panel member 40 is installed on the pair of receiving members 51 and 61 facing each other along the longitudinal direction of the ceiling panel member 40 (see FIG. 2 ), both side portions 41 a of the ceiling base material 41 are provided. The attachment material 42 bonded to the entire area can also be installed on the pair of receiving members 51 and 61. Therefore, the ceiling panel member 40 is appropriately installed in a state where it is hard to drop.
In the present embodiment, the attachment material 42 is attached only to the both side portions 41a of the ceiling base material 41, but the same attachment material is also attached to the side portions other than the both side portions 41a. I don't mind.

The non-combustible or flame-retardant surface material 43 is made of, for example, a material such as glass paper, and in a state where both side portions 41a of the ceiling base material 41 on which the attachment material 42 is arranged are wound, The lower surface portion, the both side portions 41a, and the upper surface portion of the both side portions 41a are covered. The surface material 43 is bonded to the attachment material 42 that is adhesively bonded to both side portions 41a of the ceiling base material 41 by an adhesive means such as an adhesive in a state where tension is applied to eliminate wrinkles.

[Fixing mechanism part]
As shown in FIGS. 1 and 3, the ceiling panel 16 that constitutes the first ceiling portion 11 on the side of the first building frame 10 is supported by the hanging bolts 12 that hang down from the ceiling slab of the first building frame 10. It is fixed to the lower surface of the field edge 15 attached to the edge receiver 13 via a clip 14. Then, the fixing mechanism portion 50 fixes the one end portion 40a of the ceiling panel member 40 to the first ceiling portion 11 at the edge portion 11a of the first ceiling portion 11 on the side of the gap 30a (the side closer to the second building frame 20). Is configured as one.
That is, the fixing mechanism section 50 has a receiving member 51 fixed to the edge 11 a of the first ceiling section 11 and a restraining member 52 installed on the upper surface 40 c of the ceiling base material 41 of the ceiling panel member 40.

The receiving member 51 is made of an elongated metal piece along the edge portion 11 a of the first ceiling portion 11. The receiving member 51 made of such a metal is configured as a parting member fixed to the end portion of the field edge receiver 13 in a state of covering the gap between the ceiling panel member 40 and the ceiling panel 16. A receiving surface 51a on which the one end portion 40a of the ceiling panel member 40 is placed is formed as a step on the upper surface of the receiving member 51.

As shown in FIG. 2, the restraining member 52 is configured as a metal fitting over the entire width of the ceiling panel member 40 along the longitudinal direction of the receiving member 51. Further, the restraining member 52 is installed on the upper surface 40c of the ceiling base material 41 of the ceiling panel member 40 and fixed to the receiving member 51 with the one end portion 40a of the ceiling panel member 40 placed on the receiving member 51. It is configured.

Then, as shown in FIG. 2, the fixing mechanism portion 50 is configured to hold the attachment material 42 of the ceiling panel member 40 between the holding member 52 and the receiving member 51. That is, in the ceiling panel member 40, the pair of attachments 42 attached to both side portions 41a of the ceiling base material 41 are the receiving member 51 on which the one end portion 40a of the ceiling panel member 40 is mounted, and the ceiling panel thereof. It is sandwiched by a band-shaped restraining member 52 that crosses the upper surface 40c of the member 40.

Then, the postures of the pair of attachment materials 42 are maintained stable in a state of extending from the fixing mechanism portion 50 on the first ceiling portion 11 side to the second ceiling portion 21 side. Therefore, the ceiling base material 41 made of the fibrous plate material provided between the pair of the support members 42 is prevented from being flexibly deformed by the pair of the support members 42 whose postures are stable, and as a result, the ceiling panel. The member 40 is attached in a stable posture.

The restraining member 52 is a strip-shaped portion 52A that traverses the upper surface 40c of the ceiling panel member 40 along the longitudinal direction of the member 51, and the outer surface of the attachment material 42 of the ceiling panel member 40 from both ends in the longitudinal direction of the strip-shaped portion 52A. 42a (see FIG. 5) for positioning, and a cut piece formed on the ceiling base material 41, which is formed by projecting downward from the end portion of the strip-shaped portion 52A on the slide mechanism portion 60 side, which is positioned for bending. And a stab portion 52C that is stabbed into the insertion portion 41b.

By adopting such a restraining member 52, when attaching the restraining member 52 to the ceiling panel member 40, the strip-shaped portion 52A of the restraining member 52 is aligned with the upper surface 40c of the ceiling base material 41 of the ceiling panel member 40. In this state, the restraining member 52 is easily and accurately positioned by aligning the bent piece portions 52B bent from both ends of the strip portion 52A with the outer surface 42a of the attachment material 42 of the ceiling panel member 40. Then, the posture of the supporting member 42 sandwiched between the restraining member 52 and the receiving member 51 is maintained to be accurate and more stable, and the ceiling panel member 40 whose shape is defined by the supporting member 42 is maintained. Is installed in a more stable position. Further, since the piercing portion 52C formed on the restraining member 52 is pierced into the notch portion 41b of the ceiling base material 41, the highly flexible ceiling base material 41 is prevented from being displaced in the ceiling panel member 40. ing.

Further, the restraining member 52 installed on the upper surface 40c of the one end portion 40a of the ceiling panel member 40 has a lengthwise direction of the restraining member 52 with respect to the receiving member 51 on which the one end portion 40a of the ceiling panel member 40 is placed. It is fixed by a plurality of screws 56 arranged along the line. Further, these screws 56 are inserted from above into screw holes 52a formed in the restraining member 52, penetrate the ceiling base material 41, and then screw into screw holes 51b formed in the receiving surface 51a of the receiving member 51. It is attached to fit. That is, the screw 56 extending between the restraining member 52 and the receiving member 51 sandwiching the upper and lower sides of the ceiling base material 41 of the ceiling panel member 40 penetrates. Therefore, the screws 56 preferably prevent the ceiling base member 41 having high flexibility from being displaced in the ceiling panel member 40. When a drill screw that does not require a pilot hole is used as the screw 56, the screw holes 51b and 52a need not be formed in advance.

[Slide mechanism part]
As shown in FIGS. 1 and 4, the ceiling panel 26 that constitutes the second ceiling portion 21 on the side of the second building frame 20 includes a hanging column 22 fixed to a ceiling slab of the second building frame 20 and the hanging column. It is fixed to the lower surface of a field edge 25 attached to a field edge receiver 24 supported by a connecting member 23 fixed to the lower end of 22. Then, the slide mechanism portion 60 slides the other end portion 40b of the ceiling panel member 40 to the second ceiling portion 21 at the edge portion 21a of the second ceiling portion 21 on the side of the gap 30a (the side closer to the first building frame 10). It is configured to be freely supported.
That is, the slide mechanism portion 60 has the receiving member 61 fixed to the edge portion 21 a of the second ceiling portion 21.

The receiving member 61 is made of an elongated metal piece along the edge portion 21 a of the second ceiling portion 21. The receiving member 61 made of such a metal is configured as a parting member fixed to the end portion of the field edge 25 in a state of covering the gap between the ceiling panel member 40 and the ceiling panel 26. A receiving surface 61a on which the other end 40b of the ceiling panel member 40 is placed is formed on the upper surface of the receiving member 61.
The ceiling panel member 40 placed on the receiving surface 61a is slidable in the horizontal direction.

Further, the edge portion 21 a of the second ceiling portion 21 is a protrusion portion that is protruded toward the first building frame 10 side with respect to the suspension column 22. Then, the slide mechanism portion 60 mounts the end portion 40b of the ceiling panel member 40 on the receiving surface 61a with the upper surface of the edge portion 21a which is the protruding portion as the receiving surface 61a. Further, the overlapping width of the edge portion 21 a of the second ceiling portion 21 and the end portion 40 b of the ceiling panel member 40, which is the protruding portion, is the width of the gap between the tip of the ceiling panel member 40 and the suspension column 22. Is almost equivalent to. As a result, when the first building frame 10 and the second building frame 20 are relatively moved so that the distance between the first building frame 10 and the second building frame 20 is reduced, the ceiling panel member 40 slides in the direction approaching the suspension column 22. Also, the collision of the end portion 40b of the ceiling panel member 40 with respect to the suspension column 22 is suppressed, and conversely, the two are relatively changed so that the distance between the first building frame 10 and the second building frame 20 increases. Even when the ceiling panel member 40 slides in the direction away from the suspension column 22, the ceiling panel member 40 is prevented from falling off the slide mechanism unit 60.
Further, even when the ceiling panel member 40 collides with the suspension column 22 or the like, the flexible ceiling panel member 40 is easily deformed, and the one end portion 40a of the ceiling panel member 40 is securely fixed by the fixing mechanism portion 50. Therefore, falling off of the ceiling panel member 40 and destruction and falling off of its peripheral members are suitably prevented.
The width of the edge 21a of the second ceiling portion 21 protruding toward the first building frame 10 side, the overlapping width of the edge 21a of the second ceiling portion 21 and the end portion 40b of the ceiling panel member 40, and the like. May be changed as appropriate.

[Another embodiment]
Another embodiment of the present invention will be described. Note that the configurations of the respective embodiments described below are not limited to being applied individually, but may be applied in combination with the configurations of other embodiments.

(1) In the above-described embodiment, in the slide mechanism unit 60, the edge portion 21a of the second ceiling portion 21 is the protrusion portion that is protruded toward the first building frame 10 side with respect to the suspension column 22, but the suspension column 22 The amount of protrusion of the edge portion 21a of the second ceiling portion 21 which is the protrusion portion and the presence or absence thereof may be appropriately changed within a range in which the collision of the end portion 40b of the ceiling panel member 40 with respect to the above can be avoided. Absent.

(2) In the fixing mechanism section 50 described in the above embodiment, the receiving member 51 fixed to the edge portion 11a of the first ceiling portion 11 and the restraining member installed on the upper surface of the ceiling base material 41 of the ceiling panel member 40. Regarding 52, the holding member 52 is fixed to the receiving member 51 in a state where the one end portion 40a of the ceiling panel member 40 is placed on the receiving member 51, and the holding member 52 and the receiving member 51 make the ceiling panel member 40 It is only necessary to sandwich the supporting material 42, and the shapes of the receiving member 51 and the pressing member 52 can be appropriately changed within the range of such a configuration.

(3) In the above-described embodiment, the holding member 52 is fixed to the receiving member 51 by the screw 56 in the fixing mechanism section 50, but may be fixed by another fixing means other than the screw 56.

10 Building frame 10 1st building frame 11 1st ceiling part 11a Edge 16 Ceiling panel 20 Building frame 20 2nd building frame 21 2nd ceiling part 21a Edge (bounce part)
26 Ceiling Panel 30 Connecting Portion 30a Gap 40 Ceiling Panel Member 40a One End 40b Other End 40c Top 41 Ceiling Base Material 41a Both Sides 42 Supporting Material 42a Outer Surface 50 Fixing Mechanism 51 Receiving Member 52 Restraining Member 52A Strip 52B Folding Piece Part 52C Stab part 56 Screw 60 Slide mechanism part 61 Receiving member 100 Expansion joint ceiling structure

Claims (5)

A gap between a first ceiling portion on the side of the first building body and a second ceiling portion on the side of the second building body in a connecting portion that connects the first building body and the second building body that are adjacent to each other through a gap A ceiling panel member provided in a state of covering the
A fixing mechanism that fixes one end of the ceiling panel member to the first ceiling;
An expansion joint ceiling structure, comprising: a slide mechanism portion that slidably supports the other end portion of the ceiling panel member on the second ceiling portion,
The ceiling panel member is composed of a ceiling base material made of a rectangular fibrous plate material, and a bending deformation suppressing attachment provided on each of at least both side portions of the ceiling base material,
The fixing mechanism section includes a receiving member fixed to an edge portion of the first ceiling portion, and a holding member installed on an upper surface of a ceiling base material of the ceiling panel member, and the receiving member includes the ceiling. An expansion joint configured to fix the restraining member to the receiving member with one end of the panel member placed, and to sandwich the attachment material of the ceiling panel member between the restraining member and the receiving member. Ceiling structure. The expansion joint ceiling structure according to claim 1, wherein the slide mechanism portion is configured by placing an end portion of the ceiling panel member on an upper surface of a protruding portion provided on the second ceiling portion. The restraining member has a strip-shaped portion that crosses the upper surface of the ceiling panel member, and a folding piece for positioning that bends from both ends of the strip-shaped portion in a direction along the outer surface of the attachment material of the ceiling panel member. The expansion joint ceiling structure according to claim 1 or 2, which is formed as follows. The expansion joint according to any one of claims 1 to 3, wherein in the fixing mechanism portion, the restraining member is fixed to the receiving member with a screw, and the screw is arranged so as to penetrate the ceiling base material. Ceiling structure. The expansion joint ceiling structure according to any one of claims 1 to 4, wherein the restraining member has a piercing portion that is formed so as to project downward and is pierced into the ceiling base material.

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